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Moss-prevention anti-contamination-flashover coatings and preparation method thereof

A technology of antifouling flashover paint and moss, which is applied in the direction of antifouling/underwater paint, coating, paint containing biocide, etc. It can solve the problems of complicated process and unfavorable spraying construction, and achieve the effect of uniform composition

Active Publication Date: 2013-12-25
BEIJING GUODIAN FUTONG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is: in the prior art, the anti-pollution flashover material is first coated on the outside of the insulator, and then the anti-moss material is coated to realize the functions of anti-pollution flashover and anti-moss at the same time. This method needs to coat the surface of the insulator twice, and the process is more complicated, especially not conducive to large-scale spraying construction on site

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The anti-moss type anti-fouling flashover coating described in this example is prepared from the following components by weight: 100 parts of hydroxyl-terminated polymethylphenylsiloxane, methyl benzimidazole carbamate (carbendazim) 3 parts, 3 parts of tetrabutylketoxime silane, 0.1 part of aminosilane, 160 parts of toluene solvent. The viscosity of the hydroxyl-terminated polymethylphenylsiloxane is 80000 Pa.s.

[0040] The above-mentioned anti-moss type antifouling flashover coating is prepared by the following method:

[0041] (1) Add 100 parts of hydroxy-terminated polymethylphenylsiloxane and 3 parts of benzimidazole methyl carbamate (carbendazim) into the primary mixer, mix for 1 hour, then grind evenly through three rollers, and put it into the kneader , control the temperature at 160°C, and obtain a mixed colloid after the low-molecular substances are removed;

[0042] (2) Mix the colloid obtained in step (1) and 160 parts of toluene solvent and stir evenly at...

Embodiment 2

[0047] The anti-moss type anti-fouling flashover coating described in this embodiment is prepared from the following components by weight: 60 parts of hydroxyl-terminated polydimethylsiloxane, 6 parts of precipitated white carbon black, 13 parts of cyclosiloxane 0.5 parts, 0.5 parts of 2-n-octyl-4-isothiazolin-3-one, 0.5 parts of methyl tributylketoximosilane, 0.0001 parts of dibutyltin silicate, and 100 parts of xylene solvent. The viscosity of the hydroxyl-terminated polydimethylsiloxane is 4000 mPa.s. The anti-moss type antifouling flashover coating is prepared by the following method:

[0048] (1) Add 6 parts of precipitated white carbon black to a reactor equipped with a stirrer, a thermometer, a reflux condensing agent and a vacuum degree less than or equal to -0.08MPa, and add 13 parts of cyclosiloxane to it, using Stir it with a stirrer; heat up to 130oC during the stirring process, reflux heat treatment for 3 hours; under the condition of maintaining the above vacuum...

Embodiment 3

[0055] The anti-moss type antifouling flashover coating described in this embodiment is prepared from the following components by weight: 60 parts of hydroxyl-terminated polydimethylsiloxane, 12 parts of precipitated silica, 13 parts of cyclosiloxane , 50 parts of aluminum hydroxide, 0.5 parts of 2-n-octyl-4-isothiazolin-3-one, 0.5 parts of methyl tributylketoxime silane, 0.05 parts of dibutyltin dilaurate, 100 parts of xylene solvent share. The viscosity of the hydroxyl-terminated polydimethylsiloxane is 30000 mPa.s. The anti-moss type antifouling flashover coating is prepared by the following method:

[0056] (1) Add 12 parts of precipitated white carbon black and 50 parts of aluminum hydroxide to a reactor equipped with a stirrer, thermometer, reflux condensing agent and a vacuum degree less than or equal to -0.08MPa, and add 13 parts of Cyclosiloxane, use a stirrer to stir it; heat up to 130oC during the stirring process, and reflux heat treatment for 3 hours; under the ...

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Abstract

The invention relates to moss-prevention anti-contamination-flashover coatings. The moss-prevention anti-contamination-flashover coatings comprise, by weight, 60-100 parts of hydroxyl-terminated polysiloxane, 0.5-3 parts of moss-prevention and anti-algae agent, 0.5-3 parts of cross-linking agent, 0.0001-0.1 part of catalyst and 100-160 parts of solvent. According to the moss-prevention anti-contamination flashover coatings, macromolecule organic phase and inorganic particles are compounded through coupling agent and composite organic solvent by means of the organic-inorganic hybridization technology, the organic phase in the coatings is prone to deposit on a base layer, macromolecule base rubber and the moss-prevention and anti-algae agent serving as organic phase are prone to accumulate at the surface layer of a coating layer, and along with the volatilization of the composite organic solvent, the moss-prevention and anti-algae agent with small molecular weight and higher solubility in the organic solvent is prone to accumulate at the outer surface. Therefore, the functions of preventing moss and contamination flashover are achieved only by one time of coating of the moss-prevention anti-contamination-flashover coatings, and construction is simple.

Description

technical field [0001] The invention relates to an anti-pollution flashover coating for electric equipment, in particular to an anti-moss type anti-pollution flashover coating and a preparation method thereof, belonging to the technical field of power system coatings. Background technique [0002] As we all know, the setting of the power grid and power transmission play a pivotal role in the national economy and life. In the area where the transmission line passes, industrial pollution, salt spray from the sea breeze, dust in the air and other pollutants gradually accumulate and adhere to the surface of the insulator. A dirty layer is formed, which contains acid, alkali and salt components. When dry, the dielectric strength is high and the conductivity is weak, but when it is wet with water, the dielectric strength will decrease and it will have strong conductivity. Therefore, when encountering bad weather such as rain, snow melting, fog, etc., the insulation strength of dir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D5/14C09D7/12
Inventor 赵悦菊王国刚张淼王建辉穆静静张培林
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV
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